Application of a System Using an Augmented Matrix on the TI84 (2×2) Investment

This video explains how to put an augmented matrix is row echelon form and reduced row echelon form on the TI84.

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Application of a System Using an Augmented Matrix on the TI84 (2×2) Sales

This video explains how to put an augmented matrix is row echelon form and reduced row echelon form on the TI84.